Question

what are stomata? what is the role of the stomata in a plant?​

Answer 1

Answer :

There are small openings on the lower surface of the leaves. These pores are called stomata. These openings are surrounded by guard cells.

FUNCTIONS OF STOMATA :

1. It helps in the transpiration of water, i.e., the loss of excess water from the plant.

2. Loss of water from the stomata creates an upward pull, i.e., suction pull which helps in absorption of water from the roots.

3. Stomata are responsible for the interchange of gases for respiration and photosynthesis.

4. The stomata allow for the loss of excess water in the form of water vapour, which also allows cooling.

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Answer 2

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what are stomata? what is the role of the stomata in a plant?

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Stomata regulate gas exchange between the plant and environment and control of water loss by changing the size of the stomatal pore. This stomatal movement is affected by several environmental stimuli, such as relative humidity, CO2 concentration, and light intensity.

Functions of stomata:

(i) Evaporation of water in plants in the form of vapour takes place through stomata during transpiration.

(ii) Exchange of gases (oxygen and carbon dioxide) also takes place through stomata.

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